自古以來(lái)人們就開(kāi)始使用天然染料。這些是自然的，無(wú)公害的，綠色的染料
Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So this week, we describe a natural way to dye wool. The advice comes from in…